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The '''Sun''' is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma (physics)|plasma, with internal convection|convective motion that generates a magnetic field via a Solar dynamo|dynamo process. It is by far the most important source of energy for life on Earth. Its diameter is about 109 times that of Earth, and Solar mass|its mass is about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System. About three quarters of the Sun's mass...
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Doi10.1146/annurev-astro-081913-040012| title = Solar Dynamo Theory| journal = Annual Review of Astronomy and Astrophysics| volume = 52| pages = 251–290| year = 2014| last1 = Charbonneau | first1 = P. |bibcode = 2014ARA&A..52..251C }} It is by far the most important source of energy for life on Earth. Its diameter is about 109 times that of Earth, and Solar mass|its mass is about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System.
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